LA70011 Просмотр технического описания (PDF) - SANYO -> Panasonic

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LA70011

Recording/Playback Amplifier for VHS VCRs

SANYO -> Panasonic 

LA70011, 70011M

Continued from preceding page.

Pin Number Pin Name

Standard DC Voltage (V)

Equivalent Circuit

PB

0

18

PB FILT

23

REC

2.5

Notes

Usage Notes

Control Pin Logic

Switching Trick Mode with Pin 1

GND < pin 1 level - DC < 1.0 V: TRICK2

1.0 V < pin 1 level - DC < 3.0 V: NORMAL

3.0 V < pin 1 level - DC < 5.0 V: TRICK1

NORMAL Mode

Two channels selected with pin 3 (EP/SP): ON

Envelope comparator: OFF

TRICK1 and TRICK2 Modes

All four channels: ON

Envelope comparator: OFF

Difference between TRICK1 and TRICK2 modes (See the Block Diagram.)

TRICK1 is a special playback mode using the following path

Envelope comparator OUT (pin 2) → Servo (microcontroller) → Pin 3 (HA) → HA-SW

TRICK2 provides SP searching

Envelope comparator OUT → HA-SW

HA-SW (EP/SP mode switch): Pin 3

GND < pin 3 level - DC < 1.5 V: SP mode

1.5 V < pin 3 level - DC < 5 V: EP mode

No. 5710-7/11

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